Microwave signal on-off control method based on photodetector and light-controlled microwave switch
A photodetector, microwave signal technology, applied in circuits, electrical components, waveguide-type devices, etc., can solve the problems of low excitation light power and low operating frequency band, and achieve the effects of improving switching speed, easy integration, and simple structure
Active Publication Date: 2020-02-18
SUZHOU 614 INFORMATION TECH CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In order to solve these problems, light-controlled microwave switches based on photodetectors have been proposed one after another, which have the advantages of low excitation light power and are suitable for high-speed switching, but their working frequency band is low. Until 2016, "Frequency down-conversion using photodiode sampling "The article mentioned the method of using UTC-PD to realize the microwave switch, but its switching mode is light blocking, no light conduction, which is opposite to the general switch mode, and there are many inconveniences in practical applications.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0041]Aiming at the problem that the switching mode of the existing light-controlled microwave switch based on the photodetector is light blocking and no light conduction, and it is inconvenient to use, the present invention connects a load parallel to the microwave signal after the photodetector Resistor, so as to realize the switch working mode of the light-controlled microwave switch as light conduction and no light blocking. Specifically, the present invention specifically adopts the following technical solutions:
[0042] The light-controlled microwave switch based on the photodetector is used for the on-off control of the low-frequency microwave signal path, and the light-controlled microwave switch includes a photodetector connected in series in the low-frequency microwave signal path, and a The resistance R connected in parallel with the load of the low-frequency microwave signal 1 ; When light is irradiated to the photodetector, the low-frequency microwave signal pat...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| frequency | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a microwave signal on-off control method based on a photoelectric detector. A photoelectric detector is connected in series to a low-frequency microwave signal path, and a resistor R1 connected in parallel with the load of a low-frequency microwave signal is connected after the photoelectric detector. The on-off of the low-frequency microwave signal path is controlled by controlling the light signal irradiating on the photoelectric detector. When there is light, the low-frequency microwave signal path is switched on; and when there is no light, the low-frequency microwave signal path is switched off. The invention further discloses a light-operated microwave switch based on a photoelectric detector. Through the photoelectric detector, the microwave signal is switched on under the condition of light and is switched off under the condition of no light. The working frequency and the switching speed of the microwave switch can be significantly improved, and the microwave switch is simple in structure and easy to integrate. By adding an inductor and a resistor connected in parallel with the photoelectric detector, on-off of a high-frequency microwave signal can be controlled, and the working frequency and the working bandwidth can be adjusted flexibly.
Description
technical field [0001] The invention relates to a microwave switch, in particular to an optically controlled microwave switch, belonging to the technical field of microwave photons. Background technique [0002] The main function of the microwave switch is to control the on-off of microwave signals or to cut off different channels. It is an important part of microwave control circuits and is widely used in electronic countermeasures, microwave measurement, communications, satellites and radars. With the rapid development of microwave technology, the performance requirements of microwave switches are also increasing, and it is urgent to improve their performance indicators such as operating frequency, operating speed, and operating bandwidth. Traditional PIN diode switches and RF-MEMS switches (radio frequency microelectronic switches) are gradually unable to meet such requirements due to electronic bottleneck restrictions. [0003] Compared with traditional microwave switch...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/10
CPCH01P1/10
Inventor 吴鲁刚刘世锋傅剑斌潘万胜赵磊潘时龙
Owner SUZHOU 614 INFORMATION TECH CO LTD